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参数资料
| 型号： | DS80C400-FNY+ |
| 厂商： | Maxim Integrated Products |
| 文件页数： | 80/97页 |
| 文件大小： | 0K |
| 描述： | IC MCU 75MHZ 16MB HP 100-LQFP |
| 产品培训模块： | Lead (SnPb) Finish for COTS Obsolescence Mitigation Program |
| 标准包装： | 90 |
| 系列： | 80C |
| 核心处理器： | 8051 |
| 芯体尺寸： | 8-位 |
| 速度： | 75MHz |
| 连通性： | 1 线，CAN，EBI/EMI，以太网，SIO，UART/USART |
| 外围设备： | 电源故障复位，WDT |
| 输入/输出数： | 64 |
| 程序存储器容量： | 64KB（64K x 8） |
| 程序存储器类型： | ROM |
| RAM 容量： | 1K x 8 |
| 电压 - 电源 (Vcc/Vdd)： | 1.62 V ~ 3.6 V |
| 振荡器型： | 外部 |
| 工作温度： | -40°C ~ 85°C |
| 封装/外壳： | 100-LQFP |
| 包装： | 托盘 |
| 配用： | DS80C400-KIT#-ND - EVAL KIT FOR DS80C400 |
| 其它名称： | DS80C400+FNY DS80C400+FNY+ DS80C400+FNY+-ND DS80C400+FNY-ND |
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DS80C400 Network Microcontroller
81 of 97
CAN Interrupts
The DS80C400 provides one interrupt source for the CAN controller. The CAN interrupt source can be triggered by
a receive/transmit acknowledgment from one of the 15 message centers or an error condition.
Each message center has individual ETI (transmit) and ERI (receive) interrupt enable bits and INTRQ flag bits that
are found in the corresponding message control (C0MxC) SFR. If the ETI or ERI bits have been set for a message
center, the successful transmission or receipt of a message, respectively, sets the INTRQ bit for that message
center. The INTRQ bit can only be cleared through software. All message center interrupt flags (INTRQ) of the
CAN module are ORed together to produce a single interrupt source for the CAN controller. For the microcontroller
to acknowledge any individual message center interrupt request, the global interrupt enable bit (IE.7) and the CAN
0 interrupt enable bit, EIE.6, must both be set.
Interrupt assertion of error and status conditions associated with the CAN module is controlled by the ERIE and
STIE bits located in the CAN 0 control (C0C) SFR. These interrupt sources also require that the global interrupt
enable (EA = IE.7) and the CAN 0 interrupt enable (C0IE = EIE.6) bits be set in order to be acknowledged by the
microcontroller.
Arbitration and Masking
After the CAN module has ascertained that an incoming message is bit error-free, the identification field of that
message is then compared against one or more arbitration values to determine if they are loaded into a message
center. Each enabled message center (see the MSRDY bit in the CAN message control register) is tested in order
from 1 to 15. The first message center to successfully pass the test receives the incoming message and ends the
testing. The use of masking registers allows the use of more complex identification schemes, as tests can be made
based on bit patterns rather than an exact match between all bits in the identification field and arbitration values.
The CAN controller also incorporates a set of five masks to allow messages with different IDs to be grouped and
successfully loaded into a message center; note that some of these masks are optional as per the bits shown in
There are several possible arbitration tests, varying according to which message center is involved. If all of the
enabled tests succeed, the message is loaded into the respective message center. The most basic test, performed
on all messages, compares either 11 (CAN 2.0A) or 29 (CAN 2.0B) bits of the identification field to the appropriate
arbitration register, based on the EX/ST bit in the CAN 0 format register. The MEME bit (C0MxF.1) controls whether
the arbitration and ID registers are compared directly or through a mask register. A special set of arbitration
registers dedicated to message center 15 allows added flexibility in filtering this location.
If desired, further arbitration can be performed by comparing the first two bytes of the data field in each message
against two 8-bit media arbitration register bytes. The MDME bit in the CAN message center format registers
(C0MxF.0) either disables (MDME = 0) arbitration, or enables (MDME = 1) arbitration using the media ID mask
registers 0–1.
If the 11-bit or 29-bit arbitration and the optional media-byte arbitration are successful, the message is loaded into
the respective message center. The format register also allows the microcontroller to program each message
center to function in a receive or transmit mode through the T/R bit and to use from 0 to 8 data bytes within the data
field of a message. Note that message center 15 can only be used in a receive mode. To avoid a priority inversion,
the DS80C400 CAN controller is configured to reload the transmit buffer with the message of the highest priority
(lowest message center number) whenever an arbitration is lost or an error condition occurs.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| DS80C400-FNY+ | 功能描述:8位微控制器 -MCU Network MCU RoHS:否 制造商:Silicon Labs 核心:8051 处理器系列:C8051F39x 数据总线宽度:8 bit 最大时钟频率:50 MHz 程序存储器大小:16 KB 数据 RAM 大小:1 KB 片上 ADC:Yes 工作电源电压:1.8 V to 3.6 V 工作温度范围:- 40 C to + 105 C 封装 / 箱体:QFN-20 安装风格:SMD/SMT |
| DS80C400-KIT | 功能描述:EVAL KIT FOR DS80C400 RoHS:否 类别:编程器，开发系统 >> 通用嵌入式开发板和套件（MCU、DSP、FPGA、CPLD等） 系列:- 产品培训模块:Blackfin® Processor Core Architecture Overview Blackfin® Device Drivers Blackfin® Optimizations for Performance and Power Consumption Blackfin® System Services 特色产品:Blackfin? BF50x Series Processors 标准包装:1 系列:Blackfin® 类型:DSP 适用于相关产品:ADSP-BF548 所含物品:板，软件，4x4 键盘，光学拨轮，QVGA 触摸屏 LCD 和 40G 硬盘 配用:ADZS-BFBLUET-EZEXT-ND - EZ-EXTENDER DAUGHTERBOARDADZS-BFLLCD-EZEXT-ND - BOARD EXT LANDSCAP LCD INTERFACE 相关产品:ADSP-BF542BBCZ-4A-ND - IC DSP 16BIT 400MHZ 400CSBGAADSP-BF544MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF542KBCZ-6A-ND - IC DSP 16BIT 600MHZ 400CSBGAADSP-BF547MBBCZ-5M-ND - IC DSP 16BIT 533MHZ MDDR 400CBGAADSP-BF548BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF547BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF544BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGAADSP-BF542BBCZ-5A-ND - IC DSP 16BIT 533MHZ 400CSBGA |
| DS80C400-KIT# | 功能描述:开发板和工具包 - 8051 RoHS:否 制造商:Silicon Labs 产品:Development Kits 工具用于评估:C8051F960, Si7005 核心: 接口类型:USB 工作电源电压: |
| DS80C410 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontrollers with Ethernet and CAN |
| DS80C410_09 | 制造商:MAXIM 制造商全称:Maxim Integrated Products 功能描述:Network Microcontrollers with Ethernet and CAN |
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